Sorry, this is unrelated to the 2019 300 but I’ll give it a shot. I’ve been looking for an old Motor Trend drawing of what they thought the new Chrysler sedan would look like. It was before the 300C came out. I believe it was a green drawing and it had a low roof. They either called it the 300N or Concorde. Anyone have that issue? I don’t anymore.
There was the gorgeous green 300C "concept" which was a dead ringer for the actual production car (with tweaks here and there), but I don't recall seeing it as a render first... I did find this picture, however:
http://nextcar.com.au/i.chrysler.300C.sketch.05dec.jpg
I love design renders where you see forms and character lines coming together here and there that will eventually come to light (or not!) on a production car years later. It's a shame there isn't any actual proof the original design was any bolder or subjectively better than what we got. At this point the most likely scenario is there was never a design that got watered down by the late SM, and that the story of such happenings came from one designer with a chip on their shoulder or a petty grudge. After all, extraordinary claims require extraordinary evidence.
As for the end of the current car, my dream is: aggressive front and rear fascias, a bigger, more pronounced spoiler like the current 300S has, the AWD Trackhawk drivetrain and of course the 6.2L, widebody only, whatever Demon tech they feel would be a nice addition, and a new name:
300X
Talk about going out with a bang, not a whimper! Ahh, if only!